Attachment for fountain pens



March 3, 1931. A Y c 1,794,939

ATTACHMENT FOR FOUNTAIN PENS Filed March 5 1930 AVINGS BANK lu'szw YORK, N.Y. A 192! gwwntoz JbvinMYcom,

Patented Mar. 3, 1931 PATENT OFFICE ALVIN M. YOCOM, OF WALPOLE, MASSACHUSETTS ATTACHMENT FOR FOUNTAIN PENS Application filed March 5,

This invention relates to an attachment to serve as a check protector for the casings of pocket instruments, especially the caps of fountain pens. This application is filed as a continuation in part of my prior application Ser. No. 329,542, filed December 31, 1928.

The object of the invention is to provide a simple attachment of the kind mentioned,

which will not increase the bulk or the cost of the pen, or other instrument, to any material extent, and which will be always available for use, immediately after a check has been written, assuming that the attachment is applied to a fountain pen. to perforate,

' mutilate or score the check to prevent the amount thereof from being raised.

The attachment is illustrated in the accOmpanying drawing.

Fig. 1 illustrates the use of the device as a check protector.

Fig. 2 is an elevation of the device applied to a fountain pen.

Fig. 3 is a plan of the same applied to a magazine pencil, and

Fig. 4 is a cross section on line 44 of Fig. 2.

The casing 1 of the pencil. or the cap 2 of the fountain pen, is provided with a serrated surface 3, located beneath the usual spring clip 4, just back of the ball head 8 of the same. Secured to the cap or casing by the same rivets as the clip is a spring member 5, which lies over the clip and is provided with a U-shaped end 6, the legs 7 of which embrace the clip just back of its ball head 8. The bottom edges of said legs 7 are serrated, as shown at 9. and stand opposite the serrated surface 3 of the cap or casing.

In the normal position of the parts. in which the head 8 rests against the cap or casing. the serrated surfaces 3 and 9 are out of contact. lVhen it is desired to mutilate a check, it is placed in the desired position be tween said surfaces, and then the member 5 is depressed to force the teeth 3 and 9 into the paper. The degree of the perforation of said teeth depends upon the force with which the member 5 is depressed since. when considerable force is exerted, the legs 7 tend to spread, 50 thereby increasing the extent of the mutila- 1930. Serial No. 433,451. I

tion of the paper. When the member 5 is released, it springs upwardly and the check is stripped off the teeth 9 of the legs 7 by the clip 4, if it tends to stick on said teeth. The check is then moved to another position and the operation is repeated. This is illustrated in Fig. 1, in which the line of the check 10, containing the written amount, is shown as being perforated, while the line containing the amount in figures has already been scored.

Having thus described my invention, what I claim is: i

1. In a pocket instrument provided with a retaining clip, a spring member overlying said clip and having a Ushaped free end the legs of which embrace said clip and have their bottom edges toothed to act as a check protector.

2. The combination with the casing of a pocket instrument having a portion of its surface serrated. of a spring clip secured to said casing. and a spring member overlying said clip. said member having legs on its tree end which embrace said clip, the bottom edges of said legs being serrated to cooperate with said surface to mutilate a check placed therebetween.

3. The combination with the cap of a fountain pen having teeth on a portion of its surso face and a ball-headed spring clip secured thereto at one end. of a spring member overlying and secured to the cap at the same place as said clip, said member having a U-shaped free end the legs of which straddle said clip back of the head thereof. the bottom edges of said legs being serrated to cooperate with said toothed surface to act as a check protector.

4. A check protector attachment for fountain pens, the cap of which carries the usual spring clip and has a portion of its surface beneath said clip serrated, consisting of a spring member overlying said clip and havi ing legs embracing the same. the edges of said legs being serrated to cooperate with said surface to perforate a check placed therebetween.

5. A combined fountain pen and check protector, comprising the combination, with a to the cap near ball head on its serrated surface on the cap of the pen near its open end, of two spring members secured its closed end, one having a free end and the other having its free end of inverted U-shape with the legs thereof embracing the first member back of its ball head, the edges of said legs being serrated, whereby pressure applied to the back of said second member brings said serrations into contact and tends to spread said legs to mutilate a check, interposed between said serrations, more or less, as desired, and

whereby said first member acts as a stripper to detach the check from said legswhen the pressure is removed.

In testimony whereof I have hereunto set my hand.

ALVIN M. YOCOM. 

